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Worksheets4th Science Unit 1 CA
Total questions: 28
Worksheet time: 14mins
Mark creates a diagram to compare and contrast planets and stars.
Mark makes a mistake on his diagram. Which sentence corrects Mark's mistake?
Stars shine steadily, but planets twinkle.
Both stars and planets move along orbits.
Only stars create their own heat and light.
Stars are made of solids, liquids, and gases.
Rashad is creating four models to demonstrate the lengths of day and night on different planets. The table shows the data Rashad will use to create his models.
Planet Speed of Rotation in Hours
Earth 23.9
Mars 24.6
Jupiter 9.9
Saturn 10.7
Which statement correctly describes the data in the table?
Earth and Mars have shorter days than Jupiter and Saturn.
Earth and Mars have longer days than Jupiter and Saturn.
Earth and Mars have days and nights while Jupiter and Saturn only have days.
Earth and Mars have days and nights while Jupiter and Saturn only have nights.
Read the passage about Casey and Scott.
Casey and Scott are looking together at the night sky. Casey points to a shining object in the sky and says, "Look at that, Scott! I saw that same pretty star there last week. I wonder which star it is?"
Scott follows her finger to a bright, bluish object that is twinkling in the sky. Scott replies, "I don't think that is a star—I think it is a planet. We have only one star in our solar system and that is the Sun. Besides, stars are made of hot white and yellow gases, but that object is shining blue. It is definitely a planet."
Who is correct and why?
Scott is correct because only planets can be blue.
Casey is correct because planets do not twinkle in the sky.
Scott is correct because only planets appear in the same place in the sky.
Casey is correct because planets are solid and cannot be made out of gases.
Which sentence about a star’s brightness is true?
Sirius appears brighter than the Sun because it is a brighter color.
The Sun appears to be the brightest star because it is closest to Earth.
Betelgeuse appears to be the brightest star because it is farthest from Earth.
Arcturus appears brighter than Proxima Centauri because it is a brighter color.
Which question have scientists been able to answer because telescopes are more advanced?
What do other galaxies look like?
How many planets are in the universe?
Does the Earth revolve around the Sun?
How long does it take the Moon to revolve around Earth?
A teacher challenged her 4th grade class to model the phases of the Moon using only a lamp and a baseball. She placed the lamp on a desk in the center of the room and turned off all of the other lights. She asked each student to come up with a way to model the phases of the Moon. Which setup would allow a student to observe a correct model of the phases of the Moon?
Stand a few feet away from the lamp. Hold the baseball out at arm's length. Spin the baseball in place and observe how the light illuminates the baseball as it spins.
Stand a few feet away from the lamp. Hold the baseball out at arm's length. Observe the portion of the baseball that is illuminated by the lamp. Slowly turn in place and observe how the light illuminates different portions of the baseball.
Stand a few feet away from the lamp. Hold the baseball out at arm's length. Observe the portion of the baseball that is illuminated by the lamp. Walk around the lamp while keeping the baseball at arm's length. Observe how the light illuminates the baseball.
Stand a few feet away from the lamp. Hold the baseball out at arm's length. Move the baseball up, down, left, and right. Observe how the light illuminates the baseball as it moves.
Which tool would a scientist use if they wanted to study a star?
microscope
magnifying glass
binoculars
telescope
Read the passage "Hubble Telescope" in the box below.
In 1946, Lyman Spitzer argued that a space telescope would be a great improvement for studying space. At the time, space was studied only by using telescopes on Earth's surface. After he shared his ideas in an article, he was invited to lead a group who wanted to make a large space telescope. The group did many studies and met with other groups, including NASA. These groups gathered support for this large space telescope, called Hubble. Finally, they got money from different groups and the US government to build this telescope. In 1990, Hubble was launched into orbit.
Which of the following explains the effect that the communication of scientists had on launching the Hubble Space Telescope?
Lyman Spitzer did not get any credit because other scientists took his ideas.
The launch of the telescope was slow because of all the involvement.
The project got the research, support, and money it needed.
More scientists wanted the telescope to be on Earth's surface.
If AJ was standing at the equator at noon on September 21, how many degrees above the horizon would the Sun be from their point of view?
30 degrees
45 degrees
60 degrees
90 degrees
Which season is N?
Summer
Fall
Winter
Spring
Which season is L?
Spring
Summer
Winter
Fall
Which season is O?
Spring
Fall
Winter
Summer
Which season is M?
Winter
Spring
Summer
Fall
Which picture series shows the Moon waning?
Today was James’ favorite holiday, Christmas. How many days until James gets to celebrate Christmas again?
126 days
240 days
365 days
420 days
Stars are different colors based on
the size
the temperature
how close they are to Earth.
the constellation they are part of.
Where should a person live to see the most constellations throughout a year?
in the Southern Hemisphere
in the Northern Hemisphere
at the equator
at the North Pole
The diagram compares the sizes of different stars to Jupiter, the biggest planet in our solar system.
What does this diagram show about stars and planets?
Stars can be smaller than a planet.
All stars are much bigger than Jupiter.
Stars can be much bigger than a planet.
All stars are the same size as the planets.
What is a difference between a waxing moon and a waning moon?
The Moon is a full moon when it is waxing, and it is a new moon when it is waning.
The top of the Moon is visible when it is waxing, and the bottom is visible when it is waning.
The right side of the Moon is visible when it is waxing, and the left side is visible when it is waning.
The Sun lights up the Moon when it is waxing, and the Moon produces its own light when it is waning.
How would the Sun change if the rotation of Earth was reversed?
It would appear to rise in the east and set in the west.
It would appear to rise in the west and set in the east.
It would appear to rise in the north and set in the south.
It would appear to rise in the south and set in the north.
Which part of Earth would receive the most sunlight through the entire year?
the poles
the equator
the Northern Hemisphere
the Southern Hemisphere
Star or Planet: It shines steadily.
Star
Planet
Star or Planet: It forms constellations.
Star
Planet
Star or Planet: It is made of solids and liquids.
Star
Planet
Star or Planet: It orbits in a fixed pattern.
Star
Planet
Star or Planet: It creates heat and light.
Star
Planet
Star or Planet: It is the largest object in the solar system.
Star
Planet
Correctly order the parts of the diagram to show when the Northern Hemisphere experiences the four seasons, starting with WINTER.
NLOM
MNLO
OMNL
LNMO
